Engelsohn, Harold S.
Trigonometry : a complete and concrete approach / Harold S. Engelsohn. - New York : McGraw-Hill, c 1981. - 470 p. : ill. ; 24 cm.
Includes index.
311 311
0-07-019419-X
Trigonometry.
514 / E32t
Trigonometry : a complete and concrete approach / Harold S. Engelsohn. - New York : McGraw-Hill, c 1981. - 470 p. : ill. ; 24 cm.
Includes index.
311 311
0-07-019419-X
Trigonometry.
514 / E32t